V/Λ SELECT: Month and Year
OR > Month
Monthly Climatological Summary for Dec 2023
Name: OFallon Weather City: OFallon State: MO
Elevation: 532 ft Lat: N 38° 50' 20" Lon: W 090° 43' 42"
Temperature (°F), Rain (in), Wind Speed (mph)
Heat Cool Avg
Mean Deg Deg Wind Dom
Day Temp High Time Low Time Days Days Rain Speed High Time Dir
----------------------------------------------------------------------------------
01 45.7 53.8 13:51 40.9 22:48 19.0 0.0 0.38 4.9 18.0 12:18 SW
02 39.6 41.0 00:00 38.0 07:17 25.4 0.0 0.17 2.3 14.0 02:08 WSW
03 43.2 50.7 14:53 38.8 18:49 21.8 0.0 0.04 4.0 20.0 08:27 WSW
04 40.3 45.5 15:02 37.3 08:27 24.7 0.0 0.14 3.6 13.0 13:27 WNW
05 40.3 45.4 10:21 37.7 23:05 24.7 0.0 0.01 6.5 28.0 12:47 WNW
06 40.0 47.8 14:17 31.2 07:56 25.0 0.0 0.00 3.3 13.0 13:03 SSW
07 52.6 67.8 13:28 39.4 00:58 12.7 0.2 0.00 6.7 33.0 20:16 SSW
08 54.5 59.4 12:49 48.0 05:53 10.5 0.0 0.00 7.0 23.0 20:45 S
09 47.9 59.7 02:27 36.9 23:56 17.1 0.0 0.13 8.1 30.0 18:42 W
10 34.7 42.5 14:44 25.3 23:55 30.3 0.0 0.00 5.0 20.0 00:04 WNW
11 36.7 50.7 14:34 24.1 01:17 28.3 0.0 0.00 3.0 19.0 13:06 SSW
12 38.1 48.8 14:50 27.2 07:32 26.8 0.0 0.00 2.0 9.0 02:42 NW
13 38.2 49.3 14:43 30.7 04:21 26.8 0.0 0.00 1.3 11.0 09:20 ESE
14 40.6 58.5 14:32 26.7 07:08 24.4 0.0 0.00 1.4 14.0 12:45 SE
15 48.8 62.5 14:47 34.2 03:08 16.2 0.0 0.02 3.3 16.0 13:13 SSE
16 45.5 48.9 15:37 40.1 21:58 19.5 0.0 0.35 3.5 19.0 20:19 SW
17 39.4 45.3 14:48 32.4 22:23 25.6 0.0 0.00 3.6 17.0 02:37 W
18 32.4 37.0 14:41 22.5 23:59 32.6 0.0 0.01 7.8 33.0 13:41 NW
19 30.0 43.0 15:00 16.0 05:31 35.0 0.0 0.00 3.6 15.0 13:35 SSE
20 44.3 55.3 14:09 33.5 07:42 20.7 0.0 0.00 3.1 14.0 10:54 S
21 50.5 58.6 11:46 41.2 07:37 14.5 0.0 0.00 1.9 12.0 22:26 S
22 51.5 53.5 21:15 48.7 08:07 13.5 0.0 0.15 4.3 14.0 21:15 SSW
23 53.9 60.6 15:09 47.6 22:34 11.1 0.0 0.00 2.3 12.0 12:13 SSW
24 57.7 66.7 13:59 48.5 00:00 7.4 0.1 0.00 5.7 26.0 13:48 SSE
25 49.1 58.1 00:00 36.3 23:42 15.9 0.0 0.50 7.3 25.0 12:47 SSW
26 39.6 46.2 14:50 35.1 07:41 25.3 0.0 0.00 5.3 23.0 11:17 SSW
27 36.8 42.5 01:53 32.8 23:19 28.2 0.0 0.17 3.3 16.0 00:51 S
28 36.3 42.1 13:46 33.0 00:00 28.7 0.0 0.16 6.1 21.0 17:11 NW
29 34.5 36.4 13:46 33.0 03:43 30.5 0.0 0.07 5.6 20.0 12:18 WNW
30 37.8 49.1 14:33 28.7 05:41 27.2 0.0 0.00 3.4 16.0 15:28 WSW
31 34.5 37.2 00:38 32.8 08:18 30.5 0.0 0.00 5.9 21.0 13:50 NW
----------------------------------------------------------------------------------
42.4 67.8 7 16.0 19 700.0 0.3 2.30 4.4 33.0 7 SW
Max >= 90.0 0
Max <= 32.0 0
Min <= 32.0 9
Min <= 0.0 0
Max Rain: 0.50 on day 25
Days of Rain: 14 (>= 0.01 in) 9 (>= 0.10 in) 0 (>= 1.00 in)
Heat Base: 65.0 Cool Base: 65.0 Method: Integration